Improvement in wire-drawing machines



3 Sheets-Sheet 1.

. Y J. S. WINSOR.

Wire-Drawing Machine.

.No. 196,963. Patented INQV. 6,1877. 6"?

mlmjllgallllm N-PETERS, PHOTO-L'TNOGRAPHER. WA'SHINQTON, D C.

3 she'tssheet 2.

J. S. WINSOR. v

Wire-Drawing Machine.

1N0. 196,963. Patented Nov. 6, 1877.

Fig. 4.

Fig. 6'

WITNESSES? I INVENTOR.

t l. PETERS, PHOTO UTHOGEAPHEE WASHINGTON. D C.

3 $heets-Sheet 3..

J. S. WINSOR. Wire-DrawingMaJohine.

Patented Nov. 6

INVENTOR.

N. PETERS. FHDTO-LWHOGRAHIER, WASHINGTON. D C.

UnrrE D STATES- PATENT- crime.

JOSEPH S. WINSOR, OFlPR OVIDENG E, RHODE ISLAND.

IMPROVEMENT lN WIRE-DRAWING vMACHINES.

Specification forming part of Letters Patent No. 196,963, dated November6, 1877; application filed I August 10, 1877. v

To all whomit may concern:

Be it known that I, J OSEPH S. WINsoR, of the city and county ofProvidence, and State of Rhode Island, have invented new and usefulImprovements in Wire-Drawing Machines;

and I hereby declare that the following is a full, clear, and exactdescription of the same,

reference being had to the accompanying drawings formin part of thisspecification.

. Figure 1 is a top view of my improved wire-= chine, showing thewire-pointin g device, the cam operating the same, as also thefoot-treadle and levers operating the safety-brake. Fig. 5 shows themechanism by which the die-holder is connectedwiththe clutch-operatingmechanism, so that when the wire breaks the drivingclutch is released,and the, machine stopped automatically. Fig. 6 is a view of the same.mechanism, shown in the position occupied when no strain is exerted onthe die-plate or the wire. Fig. 7 is a horizontal section of themachine, showing the main driving-shaft, the cams for operating thedrawinglever, and the? cam for actuating the wire-pointing device, as

also the beveled gear and driving-clutch. I The hinged standard forsupporting the wire-reel is shown in solid lines in its normal position,

and in broken lines when too much strain is exerted on the wire and themachine is stopped.

. Fig. Sis a top view of the clutch when turning vloose; Fig. 9, a viewof the clutch when engaged, and Fig. 10' an enlarged view of the beveledgear and clutch."

Similar letters of reference indicate corresponding parts in all thefigures.

In the drawings, A A are cast-iron end frames,provided with thebearing-blocksB B,

in which the main driving-shaft rests. O is the cast-iron front plate,having the lateral plate 0 either cast in one piecewith the front .andback plate 0 or firmly bolted between the two and the whole bolted tothe end frames A A, so that the whole forms a firm and substantialstructure, not liable to warp and give, as is .the'case with the heavywooden tables heretofore used. In the plate 0 the shaft to which thedraw-head is secured has a firm bearing cast with the plate. 0 C arefront and rear horizontal plates, firmly secured to the end frames, andto these plates 0 the plate 0 is firmly bolted or cast with the same,.and

thus forms the step-bearing for the vertical shaft, and also a supportfor the bearing of the main shaft at the center of the machine.

' The end frames A, the'top plates 0, O and O and the plates 0 and 0form the whole frame, and all the parts are secured to and supported bythe same. The spaces between the top plates G, 0 and 0 may be filledwith woodto form the table, and as the end frames are made to receivetwo ends of the plates, a number of duplicate wire-drawing machines maybe secured end to end, and all operated by one main driving-shaft.

The mechanism employed to perform the different functions of the machineconsists of the main shaft a, driven by some-prime motor, and to whichthe pinion a is secured, which, gearing into the horizontal beveled gearof, rotates the same. b is the vertical shaft, to the upper end of whichthe drawhead 12 is secured. The shaft b passes through the beveled gear0 and is supportedin a step on the plate (3. The bevel-gear a? maytherefore turn on the shaft 1), being loose on the same, while theclutch l) is firmly secured to the shaft 1).. l I

On the bevel-gear a the hinged pawl c is secured, as shown in Figs. 8and 9, and the pawl c is provided with a rounded projection, 0, shownenlarged in Fig. 10, and arranged so that when the lever 01- is raisedthe loose friction-roll d will come in contact with the projection c andengage the hingedpawlwith the stop on the clutch b as shown in Fig. 9;and when the lever 01 is lowered the roller 01" will come in contactwith the rear end of the hinged pawl c, and disengage the same from theclutch b and stop the rotation of the drawhead. E is a spring arrangedto hold the hinged pawl in the position placed by the lever d. It isshown as engaging with the end of the hinged pawl, but may be arrangedin any other manner to retain the pawl in the desired position.

One, two, or more hinged pawls may be thus secured to the upper surfaceof the bevelgear a, and one, two, or more stops provided on the clutch bat regular or irregular distances apart, and operated to secure thedriving mechanism to or from the clutch, and thus to or from thedraw-head, by the raising or lowering of the lever (1.

Instead of securing the hinged pawl to the bevel-gear, the same may besecured to a separate disk, driven in any suitablemanner, and thus thedriving'power connected with and disconnected from the machine by theraising or lowering of the lever d, thus insuring the prompt action ofthe clutch, and preventing the binding usual in power-clutches.

Secured to the main shaft a is the cam f, arranged to give reciprocatingmotion to the lever f, the upper end of which passes through a slot inthe front plate 0, and to this upper end the draw-tongs are connected,as is shown in broken lines in Fig. 1, and by the same a direct strainis exerted to draw the first portion of the wire through the-die untilenough length is secured to secure the same to the draw-head b, when theswiveled die-holder f readily adjusts itself to the new direction of thewire.

The die-holder is secured to a plate by a bolt passing through a slot inthe front plate 0, so as to allow the die-holder to swing on i the boltand reciprocate in the slot, the whole being held in the forward end ofthe slot by a coiled spring, and when in operation the strain of thewire on the die brings a strain on the coiled spring, which allows thedie-holder to slide in the slot. As soon as the wire breaks, the strainbeing released, the coiled spring draws the die-holder forward; and asit is desirable that when this happens the machine should beautomatically stopped, the lever f is secured to the lower plate of thedie-holder,

and at its lower end is provided with the stop 1, which, when strain isexerted on the die, passes over the foot-treadle lever f hinged to therear portion of the frame, and projecting in front of the machine, andis connected with the hinged lever g, which extends to and raises andlowers the clutch-operating lever d, and as soon as the strain isreleased the notch in the stop f is brought over the foot-treadle leverf and allows the same to rise, and thus, through the lever g, depressthe lever 01, and, by bringing the same in contact with the hinged pawl0, stop the revolution of the draw-head. The first of these positions isshown in Fig. 5,

and the latter in Fig. 6. By this arrangement the machine will beautomatically stopped as soon as the wire breaks.

. When the wire suddenly breaks, the portion coiled on the draw-head bis liable to uncoil, and, if the wire is thick, liable to injure theworkmen and the machine. To prevent this cutters.

I place the hinged brake h in contact with the draw-head, so as to holdthe'wir'eby the pressure of the spring b and when the same is to bereleased I press on the foot-treadle h, which, through the lever 71.operates and releases the brake h from the wire, as is shown in Fig. 4.

The coiled wire on the reel is liable to become deranged, and the strainexerted liable to break or otherwise injure the reel and kink the wire.To avoid this I mount the reel on the hinged frame i, the reel 43 beingsupported on a vertical spindle passing through two brackets secured tothe hinged frame z, and also provided with the arm 45 which restsagainst the spring '5 and is provided with a pin, which extends to thestop f ,so that when extraordinary strain is exerted on the reel i thepin on the arm 7? will push the stop f inward, and allow it to pass intoa slot in the foot-treadle f and thus allow the same to rise and,through the lever g, to operate the lever cl, and stop the rotation ofthe draw-head, and prevent injury to the wire-reel. The machine willtherefore stop automatically when the wire breaks, and also when thewire on the reel becomes deranged.

Every time the wire breaks the end must be pointed, so as to enter thedie. This, at present, requires much time. To avoid this I place on themachine a wire-pointing device, consist ing of a pair of shears in whichthe cutters are arranged so as to cut a long point. K K are two hingedjaws, provided with the beveled One of these jaws is firmly secured tothe front plate 0, and. the other provided with a lever, the endof whichenters the cam K, secured to the main driving-shaft, and thusoscillating motion is imparted to the jaw. The wire is inserted betweenthe jaws, and-a long tapering wedge is cut from the same, and, ifrequired, by partially turning the wire, two or more such wedges can becut, so that the pointed end may be readily inserted in the die. Thispointing device saves time, and facilitates the operation of themachine.

The operation of my wire-drawing machine is as follows: A coil of wirebeing placed on the reel 6, the operative inserts the end into thepointing device, where it is pointed. He now passes the pointed endthrough the die, and grasps it with the tongs secured to thereciprocating lever f and continues to draw enough wire to secure thesame to the drawhead 12. He now depresses the foot-treadle f and thusengages the pawl with the clutch b giving rotative motion to thedraw-head, and drawing the wire through the die, the brake h holding itfirmly on the draw-head, and the strain on the die keeping the stop fover the foot-treadle until all the wire is passed through the die, oruntil the wire breaks, or the wire on the reel becomes disarranged, whenthe machine is instantly stopped by the foottreadle being released, and,in its turn, releasing, through the lever d, the clutch b.

The machine is entirely self-contained, is strong and simple inconstruction and operation, and highly efficient.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- -1. The combination, with the main drivingshaft a, ofthe pinion a, the bevel-gear M, the shaft b, and clutch b arranged todrive the draw-head b, and be connected with and disconnected from thesame, by means substantially as described, as and for the purposespecified.

2. The combination, with the lever a and means, substantially asdescribed, for stopping and starting the draw-head, of the yieldingdie-holder f levers f f and g, and stop f, substantially as described. Y

3. The combination, with the shaft carrying the draw-head, clutch b andpawl c, of the lever d, foot-treadles f and connecting-lever g,substantially as described.

4. The combination, with the starting and stopping mechanism of awire-drawing machine, of a detachable reel jOllIMlGd in a movable frame,and mechanism, substantially as described, for connecting said movablereel-frame with said starting and stopping mechanism,

and the draw-head, of the vibrating lever f v and cam f, the free end ofsaid lever being arranged relatively to said die, whereby the wire maybe started and drawn through the die by means of suitable tongs attachedto said vibrating lever, substantially as described.

7. The combination, with the driving-shaft of a wire'drawing machineprovided with a cam, K, of a stationary jaw secured to the frame of themachine, and a hinged jaw arranged to be actuated by the cam on thedriving-shaft, said jaws furnished with suitable cuttin g-dies forpointing the wire, substantially as described.

JOSEPH S. WIN SOR.

Witnesses:

JOSEPH A. MILLER, J osEPH A. MILLER, Jr.

